Introduction: Rotary hammers have played a significant role in the construction industry since their inception in the 1960s. In this article, we will explore the history and evolution of rotary hammers, and their impact on the industry.

The Early Days:

German engineer Wilhelm Fein invented the first-ever electric hand drill in the early 1930s, but it wasn't until the 1960s that the first rotary hammer was invented. It had the ability to drill through hard materials like concrete and brick, and quickly became an indispensable tool for contractors.

Advancements in Technology:

Over the years, rotary hammers have undergone many improvements, including the invention of the SDS chuck system by Bosch in 1975. Today, they are available in various sizes and designs, equipped with features like vibration control, dust collection, and electronic speed control.

Impact on the Construction Industry: Rotary hammers have revolutionized the construction industry, making it possible to complete projects with greater speed and accuracy. Their impact can be felt in every aspect of construction, from drilling holes to breaking concrete.

In conclusion, rotary hammers have come a long way since their inception. As technology continues to improve, it is safe to say that they will continue to evolve and become even more essential for construction professionals.

Following are KYNKO' s best selling rotary hammers,

KYNKO new generation 30mm SDS PLUS powerfulrotary hammer KD68

Advantages：

1,The safety clutch system ensures safety when the tool gets stuck.

2,The impact systems are optimized to maximize drilling efficiency.

3,The motor cooling system is optimized to effectively extend the motor's service life.

4,The ergonomic soft rubber handle and switch trigger operation mode effectively improve the tactile sensation and reduce labor intensity.

5,The motor employs advanced manufacturing technology, delivering 1300W of strong power.

6,The quick-change chuck system allows for easy replacement of broken drill bits.

7,The tool is designed to withstand drops and prevent accidental damage.

Applications include drilling and chiseling materials such as concrete and stone.

KYNKO28mm SDS Plus Heavy Rotary Hammer KD79

Advantages：

1,With safety clutch technology, the tool can stop immediately when the drill bit becomes stuck.

Double #688 bearings protect the gears, making them more durable.,

2,The wire has a total length of 3.5m, allowing for work at greater distances.

3,The new generation housing design is more user-friendly.

4,The housing materials are of better quality compared to other brands. They are more abrasion-resistant and do not crack.

5,The impact components are made of special steel, suitable for use in any hard-working environment.,

6,Applications: Quarrying, large-scale stone construction, highway and bridge drilling.

Our extensive range of power tools is designed to meet the needs of professionals. With our commitment to quality and customer satisfaction, we are confident that you will find the perfect tool for your needs.

FAQ：

Q: When was the first rotary hammer invented?
A: The first rotary hammer was invented in the 1960s.Q: What made rotary hammers possible?

Q: What are some of the technological advancements in rotary hammers?

A: Some key advancements include:

•The invention of the SDS chuck system by Bosch in 1975.
•The availability of different sizes and designs of rotary hammers.
•Features like vibration control, dust collection, and electronic speed control.
•KYNKO's rotary hammer has features like a safety clutch, optimized impact and cooling systems, an ergonomic design, and quick-change chuck.